Designation: B 49 – 98 (Reapproved 2004)
Standard Specification for
Copper Rod Drawing Stock for Electrical Purposes
1
This standard is issued under the fixed designation B 49; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript
epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope*
1.1 This specification covers the requirements for rod draw-
ing stock in diameters from
1
⁄
4
to 1
3
⁄
8
in. (6.4 to 35 mm)
produced from electrolytic tough-pitch or oxygen-free coppers
and are suitable for further fabrication into electrical conduc-
tors.
1.2 The values stated in inch-pound units are the standard.
The values given in parentheses are for information only.
1.3 The following safety hazards caveat pertains only to
Section 13. This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
2. Referenced Documents
2.1 The following documents in the current issue of the
Book of Standards form a part of this specification to the extent
referenced herein and define materials suitable for use in rod
manufacture:
2.2 ASTM Standards:
2
B 5 Specification for High Conductivity Tough-Pitch Cop-
per Refinery Shapes
B 115 Specification for Electrolytic Copper Cathode
B 170 Specification for Oxygen-Free Electrolytic Copper—
Refinery Shapes
B 193 Test Method for Resistivity of Electrical Conductor
Materials
B 224 Classification of Coppers
B 577 Test Methods for Detection of Cuprous Oxide (Hy-
drogen Embrittlement Susceptibility) in Copper
B 846 Terminology for Copper and Copper Alloys
E 8 Test Methods for Tension Testing of Metallic Materials
E 18 Test Methods for Rockwell Hardness and Rockwell
Superficial Hardness of Metallic Materials
E 29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
E 53 Test Methods for Determination of Copper in Unal-
loyed Copper by Gravimetry
E 478 Test Methods for Chemical Analysis of Copper
Alloys
2.3 Other Document:
NBS Handbook 100 Copper Wire Tables
3
3. Terminology
3.1 For definitions of general terms relating to copper and
copper alloys refer to Terminology B 846.
4. Ordering Information
4.1 Orders for rod under this specification shall include the
following information:
4.1.1 ASTM designation and year of issue,
4.1.2 Quantity of each size,
4.1.3 Type and requirements of copper (Sections 5-10),
4.1.4 Finish (Sections 9 and 10),
4.1.5 Package with or without joints (see 5.3),
4.1.6 Rod diameter (see 9.2),
4.1.7 Inspection (Section 15),
4.1.8 Package size (see 19.1), and
4.1.9 Special package marking as agreed upon between the
manufacturer and the purchaser (Section 19).
4.2 The following requirements are optional and should be
specified in the contract or purchase order when required.
4.2.1 Certification (Section 17) and
4.2.2 Test Report (Section 18).
5. Material and Manufacture
5.1 The rod shall be fabricated from copper of such quality
and purity that the finished product shall have the properties
and characteristics prescribed in this specification.
NOTE 1—The following specifications define materials suitable for use:
1
This specification is under the jurisdiction ofASTM Committee B05 on Copper
and Copper Alloys and is the direct responsibility of Subcommittee B05.07 on
Refined Copper.
Current edition approved May 1, 2004. Published May 2004. Originally
approved in 1923. Last previous edition approved in 1998 as B 49 – 98
e2
.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
3
Available from the National Technical Information Service, 5285 Port Royal
Rd., Springfield, VA 22161.
1
*A Summary of Changes section appears at the end of this standard.
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